<template>
  <div>
    <el-form
      :rules="rules"
      v-loading="loading"
      element-loading-text="正在登录。。"
      element-loading-spinner="el-icon-loading"
      element-loading-background="rgba(0, 0, 0, 0.8)"
      ref="loginForm"
      :model="LoginForm"
      class="loginContainer"
    >
      <h3 class="loginTitle">系统登录</h3>
      <!-- 用户名 -->
      <el-form-item prop="username">
        <el-input
          type="text"
          auto-complete="false"
          v-model="LoginForm.username"
          placeholder="请输入用户名"
        ></el-input>
      </el-form-item>
      <!-- 密码 -->
      <el-form-item prop="password">
        <el-input
          type="password"
          auto-complete="false"
          v-model="LoginForm.password"
          placeholder="请输入密码"
        ></el-input>
      </el-form-item>
      <!-- 验证码 -->
      <el-form-item prop="code">
        <el-input
          type="text"
          auto-complete="false"
          v-model="LoginForm.code"
          placeholder="点击图片更换验证码"
          style="width: 250px; margin-right: 5px"
        ></el-input>
        <!-- 验证码图片 -->
        <img :src="captchaUrl" @click="updateCaptcha" class="login_img" />
      </el-form-item>
      <el-checkbox v-model="checked" class="loginRemember">记住我</el-checkbox>
      <!-- 登录按钮 -->
      <el-button type="primary" style="width: 100%" @click="submitLogin"
        >登录</el-button
      >
    </el-form>
  </div>
</template>

<script>
import {getRequest} from "@/utils/api";

export default{
  name:'Login',
  data(){
    return{
      loading:false,
      captchaUrl:'/captcha?time='+new Date(),
      checked:true,
      LoginForm:{
        username:"admin",
        password:"123",
        code:''

      },
      rules:{
        username:[{required:true,message:"请输入用户名",trigger:'blur'}],
        password:[{required:true,message:"请输入密码",trigger:'blur'}],
        code :[{required:true,message:"请输入验证码",trigger:'blur'}]
      }

    }
  },
  methods:{
    submitLogin(){
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading=true;
          this.postRequest('/login',this.LoginForm).then(response=>{
            if(response){
              this.loading=false;
              const tokenStr=response.object.tokenHead+response.object.token;
              window.sessionStorage.setItem("tokenStr",tokenStr);
              let path=this.$route.query.redirect;
              this.$router.replace((path=='/'||path==undefined)?'/home':path)

            }
            else this.loading=false;
          })
        } else {
          this.loading=false;
          this.$message.error("请输入所有字段");
          return false;
        }
      });
    },
    updateCaptcha(){
      this.captchaUrl='/captcha?time='+new Date();
    }
  }
}
</script>

<style >
.loginContainer {
  border-radius: 15px;
  background-clip: padding-box;
  margin: 180px auto;
  width: 350px;
  padding: 15px 35px 15px 35px;
  background-color: #fff;
  border: 1px solid #eaeaea;
  box-shadow: 0 0 25px #cac6c6;
}

.loginTitle {
  margin: 0px auto 40px auto;
  text-align: center;
}
.loginRemember {
  text-align: left;
  margin: 0px 0px 15px 0px;
}
.el-form-item__content {
  display: flex;
  align-items: center;
}
</style>